Argentine goalkeeper Sergio Goycochea would crouch down and covertly urinate on the field before every penalty shootout for good luck. He started the ritual during the 1990 World Cup quarter-finals and continued on for the rest of his career. – WTF Fun Facts
Source: https://www.bbc.co.uk/bbcthree/article/f9faf653-b038-4c99-b0ba-bf7338e60ec0